Steel Beam Sizes / CISC / W-Shapes / W840×299
W840×299 Dimensions, Weight and Section Properties
CISC Wide flange · v12.1
W840×299: 855 mm depth, 400 mm flange width, 299 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
W840×299 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 201.00 lb/ft | 299.00 kg/m |
| Depth, d | 33.66 in | 855.00 mm |
| Flange width, bf | 15.75 in | 400.00 mm |
| tw | 0.717 in | 18.200 mm |
| tf | 1.150 in | 29.200 mm |
| Area | 59.21 in² | 38,200.00 mm² |
| Ix | 11,532.05 in⁴ | 4,800,000,000 mm⁴ |
| Iy | 749.58 in⁴ | 312,000,000 mm⁴ |
| Sx | 683.47 in³ | 11,200,000 mm³ |
| Sy | 95.20 in³ | 1,560,000 mm³ |
| Zx | 775.00 in³ | 12,700,000 mm³ |
| Zy | 147.07 in³ | 2,410,000 mm³ |
| rx | 13.98 in | 355.00 mm |
| ry | 3.56 in | 90.40 mm |
| J | 20.81 in⁴ | 8,660,000 mm⁴ |
| Cw | 198,111.34 in⁶ | 53,200,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus W840×299.
Lighter in W840
W840×251
- Weight
- 251.0 kg/m (-16%)
- Depth
- 859.0 mm (+0.5%)
- Ix
- 3,860,000,000 mm⁴ (-20%)
Heavier in W840
W840×329
- Weight
- 329.0 kg/m (+10.0%)
- Depth
- 862.0 mm (+0.8%)
- Ix
- 5,360,000,000 mm⁴ (+12%)
Another Iₓ option in W840
W840×359
- Weight
- 359.0 kg/m (+20%)
- Depth
- 868.0 mm (+1.5%)
- Ix
- 5,920,000,000 mm⁴ (+23%)
Similar weight in W920
W920×289
- Weight
- 289.0 kg/m (-3.5%)
- Depth
- 927.0 mm (+8.4%)
- Ix
- 5,040,000,000 mm⁴ (+5.0%)
Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Not produced in Canada. · Methodology